PU is a polymer with urethane segment repetitive structure unit formed after the reaction of TDI and PPG.
聚氨酯是由异氰酸酯与多元醇反应制成的一种具有氨基甲酸酯链段重复结构单元的聚合物。
When the repeating unit is composed of several monomeric components following each other in a regular fashion, the polymer is commonly named according to its structure.
inaregularfashion，规则地当重复单元由几个单体组成物规则排布，聚合物通常根据它的结构来命名。
When the repeating unit is composed of several monomeric components following each other in a regular fashion, the polymer is commonly named according to its structure.
inaregularfashion，规则地当重复单元由几个单体组成物规则排布，聚合物通常根据它的结构来命名。
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